Sadly when Paul penned that, some in the congregation had stopped progressing in the truth.
That is the simple crux of the matter. The believers were not 'growing' in the faith. It is not milk that is the problem, but being
stuck on milk and
refusing strong meat becomes the problem:
"Consider the lilies of the field, how they grow..."
"and the seed should spring and grow up..."
"But speaking the truth in love, may grow up into him..."
There is no need of diving into some useless and
endless discussion about being a 'babe' vs 'full grown'. A babe is a newbie and adults are full grown be reason of learning and experience (Heb 5:14). Nor especially does some carnalized debate about
milk, meat, manna, and vegetarianism need be brought in.
"
The words that I speak unto you, they are spirit, and they are life." (John 6) The Kingdom of God is not about 'meat and drink' (Rom 14), but about spiritual and doctrinal growth.
"Because ye are strong, and the word of God abideth in you, and ye have overcome the wicked one." (1 John 2)
There is nothing wrong with the milk of the Word:
"As newborn babes, desire the sincere milk of the word, that ye may grow thereby." (1 Peter 2)
Nothing in Scripture suggests we should l
eave it behind and not drink it anymore:
"I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand; how that Christ died for our sins according to the scriptures; And that he was buried, and that he rose again the third day according to the scriptures." (1 Cor 15)
But Paul is simply reminding all of us of the
danger of not growing up from babyhood: Not
moving forward to becoming adults in the faith, especially if they is persistent and willfully done. The analogy is simple and indisputable:
No parent wants to see their children remain crawling on their hands and knees, when they ought be walking and running freely, especially if it is because they refuse to stand and do so. Afterall, we are in a race, the race of faith (1 Cor 9), and the first step in the race
begins with standing for the faith. (Rom 5)
"Now therefore stand still, that I may reason with you before the LORD of all the righteous acts of the LORD." (1 Sam 12)
Further every little child must learn the things of this life adequately to function properly and successfully as adults, and not be left with constant caretakers and providers. We are to learn to provide
for our own (1 Tim 5). And so it is with growth in the body of Christ and the commonwealth of Israel, into which we have been born.
There are at least 2 written dangers of not growing strong
by the meat in the Word of faith:
1. If we do not grow in the faith
as expected by God, then we die and are cut off, i.e. we must bear the
necessary fruit of spiritual growth: (John 15)
"And when he saw a fig tree in the way, he came to it, and found nothing thereon, but leaves only, and said unto it, Let no fruit grow on thee henceforward for ever. And presently the fig tree withered away." (Matthew 21)
2. If we do not grow in the knowledge of the Word, which
only begins with it's 'sincere milk', then we are in danger of being deceived, seduced, and lured away from the faith of Jesus, because we know not the Scriptures as
we ought to know them (Heb 5:12):
"Beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness. But grow in grace, and in the knowledge of our Lord and Saviour Jesus Christ." (2 Peter 3)
"Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand." (Eph 6)
Simply put, perpetual babes that
refuse to be skillful in the word of knowledge become easy pickings for the devil's devices and the snares of false teachers that deceitfully mishandle the Scriptures (Heb 5)(2 Cor 4):
"
That your faith should not stand in the wisdom of men, but in the power of God." (1 Cor 2)
So
both the milk and the meat of the Word of God are necessary and good for running the race and standing strong in the faith and bearing fruit to the good pleasure and will of God and not being deceived into falling into false ditches along the way.
But if we remain babes only desiring milk and refusing the meat, then we come short of the grace and salvation Christ died for (Heb 4):
Believing on Jesus' name, reading the Bible and praying, giving in offerings at church, not living riotously...are the good
first steps of the sincere milk of faith, but these things can in fact become mere religious formality and atrophy of faith, if we do not
move forward to the strong meat of discerning the righteousness of God from our own self-righteousness, of knowing the difference between a lie of the devil and the truth of Scripture, of having sober minded judgement in all things, of mature understanding to love only the good and reject the evil:
"These ought ye to have done, and not to leave the other undone." (Matthew 23)